Self-filling writing instrument.



J. G. RIDER.

SELF FILLING WRITING INSTRUMENT.

APPLICATION FILED NOV. 8, 19:5.

Patented Apr. 30,1918.

body portion ofthe pull bar showing the nnrrnn sratrns ratrnnr rnrcn,

JAY o. nrnnn, or nooxroian, i Lrivors, ASSIGNOR r0 5. e. ninnr. PEN so, ornooxronl),

ILLInoIs, A oonronerlorv or" iiLLInors.

SELF-FILLING WRITING INSTRUMENT.

Specification of Letters IPatent.

Patented Apr. so, leis.

Application filed November 8, 1915. Serial No. AM.

1 '0 aZZ whom it may concern.

Be it known that I, JAY G. RlDER, residing at 115 South Henriette avenue, in the city of Rockford, county of l vinnebago, and State of Illinois, have invented a new and useful Improvement for Self-Filling VVriting Instruments, of which the following is a specification.

My invention relates to certain improvements in means for compressing flexible ink reservoirs, commonly used in self filling fountain pens, and has for its object to provide a means of this nature which will be simple in construction, comparatively inexpensive to manufacture and more efficient in action than tiose heretofore proposed. I

l vith these and other objects in View the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings, forming a part of this specification, in

which like characters designate like parts in all the views Figure l is a longitudinal view, partly in section, of a fountain pen provided with my invention; p

Fig. 2 is a view similar to Fig. 1, a portion of the barrel being broken away, and showin the parts in their deflated condi tion, the deflating bar being of a slightly modified form over that shown in Fig. 1;

3 is a plan View of the parts shown in Fig. 2, the parts beingat rest or in their inflated condition;

Fig. 4 is a detail view of one end of the pen barrel showing a modified form of off-, set for the pull bar;

of the barrel A is located the deflating bar 13 which may be of any suitable cross section, but the curved cross section illustrated in Fig. 6, in many cases, is to be preferred. The said bar 13 may have an integral ex tension as shown at D, or it may have the modified form of the extension as shown at J, Fig. 5, which is attached thereto, and which extension extends across the body of the sack C and through an opening such as K in the wall of the pen barrel as-illustrated.

The outer end of the extension D which protrudes through the casing or barrel A may be providedwith any suitable lug or means by which it may be grasped, such for example, as the lug OZ, Fig. 1, or the extension E, Figs. 2, 3 and 5. In said Fig. 5, the construction of the said gripping piece or lug E is preferably made integral with the extension J as shown. Then a lug such as (Z is employed a scooped out or cutaway place 'F may be provided on the casing or barrel A, in order to facilitate the grasping of the said lug (Z, as will be clear from Fig. 1. On the other hand, when the extension E is employed, the said scooped out, or cut-away place F may be conveniently located farther from the end of the casing or barrel A, as will be clear from Figs. 2 and 8. In the last named figures I also prefer to provide a slot not lettered, connecting the space F with the orifice K.

In Fig. 4-, the orifice H through the barrel is somewhat elliptical in shape, and a gripping lug such as G extends across the same as shown. In the form shown in Fig. 5, the cutaway portion F may be omitted but a slot for the accommodation of the member t, E is preferably provided. In all cases that Fig. 5 is a sectional detail view of one? ,portion of the deflating bar B which lies end of a pen barrel showing a still further modified form of deflating pull bar; and

Fig. 6 is an end elevational view of the same to be curved in cross section.

A designates a pen barrel of any su1table construction, provided wlth any suitable compressible sack or reservoir C, adapted},

0f thedeflating bar B to the barrel of the to hold ink and connected at its end nearest the pen point, with an outlet to said pen point in any suitable manner not shown The upper end ofthe sack C is preferably closed as illustrated.

Between the sad; 5 and the inner surfacevenient distance along the barrel to accom olish the efficient deflation of the sack C but it is terminated short of the open end of said sack as is indicated in Fig. 1.

In no case is it desired to hinge or-otherwise permanently attach the body portion pen, but merely to let the same lie loosely -ns1de the barrel as illustrated.

The operation of my invention will be clear from the foregoing, but may briefly summ z d as follow s d ite i is jifi l'td between the inner wall of the barrel and the sack C is preferably extended a conto deflate the sack C and thus cause it to suck up ink, it is only necessary to seize one ofthe lugs such as 'E or cl and pull the deflatingbar Bbodily away from its position shown in Fig. 2, whereupon the said bar will move parallel to itself and thus deflate .a maximum portion of the saclrC.

By this means the said sack is caused to take up a maximum quantity of ink when said'bar is released, and the natural resiliency of said sack, combined with the fluid forced thereinto, will automatically return conveniently made of ordinary plated fairly stiff, but of course other suitable ma.

the bar B from the position shown in Fig. 2

.to the position shown in Fig. 1.

- It will thus be seen that in all the forms I have provided a-sim'plified means of compressing the ink reservoir that gi'vesa maxi mumof etlioiency with a minimum number of parts.

In its simplest form, the'deflating bar is wire,

terial may be employed when desired. In all cases it is preferred to so proportion the parts that the gripping members such as E and diwill return flush with or slightly inside the outer surface of the casing and I thus avoid all liability of accidentally oper- 40' ing from the spirit of the invention, and

ating the bar B. It is also preferred to so arrange the parts that durin the deflating operation the gripping members such therefore, I do not'wish to be limited to therabove disclosure except as may be rej quired by the claims,

'What I claim is I 1. In a self filling writing instrument, the

combination of a casing; a detlatable reservoir in said casing provided with a closed end; a deflating bar provided with a body portion located between said casing and said reservoir and with an extension transverse to said body portion overlying said closed end; and means rigid with said extension, located on the outside of said casing for forcibly pulling said bar and extension. in a direction transverse to said body portion for deflating said reservoir, substantially as described.

In a self filling writing instrument, the combination of a casing; a deflatable reservoir in said casing provided with a closed end; a deflating bar provided with a body portion located between said casing and said reservoir free from connection with said casing, and having an extension transverse to said body portion overlying said closed end; and gripping means extending lengthwise of said casing and rigid with said extension for forcibly moving said bar parallel to its length and said extension transverse to said body portion for deflating said reservoir, substantially as described.

3. As a new article of manufacture a sell filling pen provided with a casing; a de fiatable reservoir having a closed end in said casing; a deflating bar having a body portion extending lengthwise of the pen barrel and disconnected therewith; an extension rigid with and at substantially right angles to said body portion normally overlying said closed end and terminating on the outside of said casing; and gripping means associated with said extension for moving said body portion parallel to its length substantially as described.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

- J. G. RIDER.

Witnesses EDWIN M. ETHLEN,

1 Brno E. CARPENTER.

Copies of this patent may, be obtained for five cents each, by addressing the "Commissioner of Patents 7 Washington, D. G. 

